WLM may stand for:

• Wellman, Inc.'s stock ticker WLM
• West London Mission (see West London Methodist Mission), pioneering social work, supporting homeless people and marginalised members of society
• White lighter myth, a myth that using or owning a white lighter results in misfortune
• Wiki Loves Monuments, a photography contest
• Windows Layer for Macintosh
• Windows Live Hotmail, a free webmail service by Microsoft, briefly called Windows Live Mail during its beta stages
• Windows Live Mail, an e-mail and newsgroup client included in Microsoft's Windows Live group of services
• Windows Live Messenger, a free instant message program by Microsoft
• Wolf-Lundmark-Melotte, a galaxy
• Women's Liberation Movement
• Working Level Month, a unit of exposure to Radon-222 in uranium mines
• Workload Manager, the goal oriented resource distributor in IBMs mainframe z/OS operating system

• Vocalizations of fin whales
• Vocalizations of oceanic dolphins
• Vocalizations of pilot whales
• Vocalizations of sperm whales
• Vocalkitchen
• Vocal Kitchen
• Vocal melody
• Vocal muscles
• VocaLoca
• Vocaloid 5
• Vocaloid-Board
• Vocaloid Editor for Cubase
• Vocaloid Keyboard
• Vocalosity
• Vocal (Pet Shop Boys song)
• Vocal pitch shifter
• Vocal Play
• Vocal processes
• Vocal Rush
• Vocal sacless treefrog
• Vocal surf
• Vocal tone
• Vocal tracts
• Vocal War
• Vocal War: God's Voice